Puzzle Day

Alright, let’s kick Puzzle Day off with some fun brain teasers! Here are a few to test your wits:


1. The Mysterious Box

I have keys but no locks. I have space but no room. You can enter, but you can’t go outside. What am I?


2. The Number Riddle

I am a three-digit number.
My tens digit is five more than my ones digit, and my hundreds digit is eight less than my tens digit.
What number am I?


3. The River Crossing

A farmer needs to get a fox, a chicken, and a sack of grain across a river. The boat can only carry the farmer and one other thing at a time. If left alone, the fox will eat the chicken, and the chicken will eat the grain.
How does the farmer get everything across safely?

Here are the answers!


1. The Mysterious Box

Answer: A Keyboard.
(You have “keys” but no locks, “space” but no room, and you can “enter” but can’t go outside.)


2. The Number Riddle

Answer: 194.
(The tens digit is 5 more than the ones digit: 9 = 4 + 5. The hundreds digit is 8 less than the tens digit: 1 = 9 – 8.)


3. The River Crossing

Answer:

  1. The farmer takes the chicken across first.
  2. Then goes back and takes the fox across.
  3. The farmer leaves the fox on the other side and takes the chicken back.
  4. Next, the farmer takes the grain across and leaves it with the fox.
  5. Finally, the farmer goes back to get the chicken.

Now all three—fox, chicken, and grain—are safely across the river!